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Cyrenidae 1 species (2 shells in total)

Phylum      : Mollusca
 Class       : Bivalvia 
  Subclass    : Heterodonta 
   Infraclass  : Euheterodonta 
    Superorder  : Imparidentia 
     Order       : Venerida 
      Superfamily : Cyrenoidea 
       Family      : Cyrenidae 

Common name : Japanese basket clam, or Japanese blue clam

Aspect : The shell is generally triangular and measures up to 3 cm, adorned with around forty concentric edges (adult), lustrous for the external face and dark brown to olive-green. The internal surface is white with a more or less clear purple mark along the margin and muscle traces. The dorsal edge is thick decorated with three cardinal teeth and a clearly developed lateral tooth.

Feeding : filtration of suspended phytoplankton => accumulation of pollutants (pesticides, PCB, PAH)

Environment : fresh and brackish water in various types of sediment. invasive species of Asian origin introduced in 1980 in Europe via the Rhine and Rhône canals.

Corbicula japonica Prime, 1864

Corbicula japonica : (Vorey-sur-Arzon)
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